body {
    background: url("img/2.jpg") top center no-repeat;
    width: 100%;
    height: 1080px;
    position: relative;
}

.wrapper {
    width: 1100px;
    position: relative;
    margin: 0 auto;
}

.btn_01 {
    background: url("img/2_03.png") no-repeat;
    width: 218px;
    height: 75px;
    position: absolute;
    top: 14px;
    right: 28px;
    text-indent: -99999px;
}

.btn_02 {
    background: url("img/2_03-02.png") no-repeat;
    width: 300px;
    height: 104px;
    position: absolute;
    left: 95px;
    top: 435px;
    text-indent: -99999px;
}

.btn_03 {
    background: url("img/2_06.png") no-repeat;
    width: 300px;
    height: 104px;
    position: absolute;
    left: 707px;
    top: 435px;
    text-indent: -99999px;
}

.erweima {
    position: absolute;
    left: 482px;
    top: 421px;
    width: 142px;
    height: 142px;
    border: 0 none;
    overflow: hidden;
}